Performance

· 26 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop

Performance

Accessibility

100

Best Practices

100

SEO

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

2.22 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

5.15 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

10 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.000

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

3.56 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

5.15 s

Page Load Progression

375 ms

750 ms

1.1 s

1.5 s

1.9 s

2.2 s

2.6 s

3.0 s

Checks

16 PASS 7 REVIEW

JS Execution Cost

803ms total JS execution

REVIEW

803ms total JS execution

https://agentpawn.com/assets/index-CM0g36nm.js: 349ms CPU time

Unattributable: 249ms CPU time

https://agentpawn.com/: 204ms CPU time

Main Thread Breakdown

Other 38% Script Evaluation 35% Style & Layout 19% Rendering 4%

Script	Total	Scripting	Parse/Compile	Party
https://agentpawn.com/assets/index-CM0g36nm.js	349ms	261ms	2ms	1st
Unattributable	249ms	11ms	0ms	1st
https://agentpawn.com/	204ms	5ms	4ms	1st

JS Bundles

8 scripts, 94 KB unused

REVIEW

8 scripts, 94 KB unused

https://agentpawn.com/assets/index-CM0g36nm.js: 94 KB unused (51%)

Consider code splitting or tree shaking to reduce unused code.

https://agentpawn.com/airo-video-slots.js: unminified — 3 KB could be saved

Total unused JavaScript: 94 KB

94 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://agentpawn.com/assets/index-CM0g36nm.js	185 KB	94 KB (51%)	✓	1st
https://agentpawn.com/airo-video-slots.js	7 KB	—	✗	1st
https://agentpawn.com/airo-logo-orientation.js	2 KB	—	✓	1st
https://agentpawn.com/assets/query-BF8rksmY.js	12 KB	—	✓	1st
https://agentpawn.com/assets/react-vendor-DWYk_N8Y.js	2 KB	—	✓	1st
https://agentpawn.com/assets/radix-ui-DvL_1yzp.js	0 KB	—	✓	1st
https://agentpawn.com/analytics.js	0 KB	—	✓	1st
https://static.cloudflareinsights.com/beacon.min.js	10 KB	—	✓	3rd

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

HTTP/3 (QUIC)

HTTP/3 not advertised

REVIEW

HTTP/3 not advertised

HTTP/3 (QUIC) is not advertised

HTTP/3 isn't advertised via Alt-Svc and the worker didn't negotiate h3. HTTP/3 reduces handshake latency (1-RTT instead of 2-3 RTTs) and is more resilient on lossy connections. Most modern CDNs (Cloudflare, Fastly, AWS CloudFront, Google Cloud CDN) support HTTP/3 with a single config switch -- consider enabling for mobile-heavy workloads.

Document Compression

Document response uses gzip; brotli would be ~20% smaller

REVIEW

Document response uses gzip; brotli would be ~20% smaller

Main HTML response uses gzip (brotli would be ~20% smaller)

All current browsers support brotli. Most CDNs (Cloudflare, Fastly, AWS CloudFront, Vercel, Netlify) can switch from gzip to brotli with a single config flag. Origin servers (nginx, Apache) need a brotli module compiled in -- nginx-brotli or Apache mod_brotli.

Server-Timing Observability

No Server-Timing header found

REVIEW

No Server-Timing header found

Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.

Green Hosting

Action

Whether the site is served from green-energy infrastructure

REVIEW

Green Hosting

No green hosting detected

HTTP Caching

no-cache

REVIEW

no-cache

Cache-Control header is set

Got: no-cache

ETag present — enables conditional (304) responses

Cache-Control

no-cache

Directive	Value	Meaning
no-cache	—	Cache but always revalidate first

A+

Page Weight Budget

357 KB transferred, 21 requests

PASS

357 KB transferred, 21 requests

Page weighs 1023 KB (357 KB transferred)

21 HTTP requests

Estimated 0.07 g CO2 per page load

357 KB transferred

21 requests

0.07 g CO2 per page load

JavaScript 218.2 KiB 61%

Fonts 47.3 KiB 13%

Images 45.5 KiB 13%

HTML 16.8 KiB 5%

Other 16.4 KiB 5%

CSS 12.1 KiB 3%

Other 688 B 0%

Other 36 B 0%

Other 0 B 0%

0 2.4 MB 4.9 MB

Under budget

Third-Party Impact

34% third-party, 0 ms blocking

PASS

34% third-party, 0 ms blocking

Third-party code accounts for 34% of page weight (120.2 KiB of 357.0 KiB)

Third-party blocking time is low (0 ms)

66%

34%

First-party Third-party

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are properly compressed.

A+

Image Optimization

2 images, 0 KB saveable

PASS

2 images, 0 KB saveable

https://agentpawn.com/airo-assets/images/logo/hori... is missing width/height — may cause layout shift

Set explicit width and height to prevent CLS.

2 images 46 KB

0 oversized -0 KB

0 legacy format

1 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

A+

Font Loading

1 fonts (47 KB)

PASS

1 fonts (47 KB)

1 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

47 KB total

Render-blocking

of 1

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

UcC73FwrK3iLTeHuS_nVMrM... woff2 swap

Size 47 KB

Load time 57 ms

Start 1.5 s

Risk FOUT — text flashes from fallback to web font

Optimization checklist

Preload critical fonts (priority=high)
Use woff2 format for all fonts
Set font-display to swap, optional, or fallback
Subset large fonts (≤100 KB each)

A+

Resource Caching

All resources properly cached

PASS

All resources properly cached

No caching issues found

All static resources have appropriate caching headers.

A+

Critical Rendering Path

No render-blocking resources

PASS

No render-blocking resources

No render-blocking resources detected

A+

Resource Hints

1 hints, 0 missing preconnects

PASS

1 hints, 0 missing preconnects

Page uses 1 resource hint(s)

Current Resource Hints

preconnect

—

preload

dns-prefetch

—

prefetch

—

1 resource hints configured

A+

LCP Image Preload

LCP preload audit not available

PASS

LCP preload audit not available

LCP image preload audit not available for this scan

A+

Main HTML Cache-Control

Main HTML uses no-cache -- safe revalidate-on-request policy

PASS

Main HTML uses no-cache -- safe revalidate-on-request policy

Got: no-cache

A+

Server Response Intelligence

2 server-response signal(s) detected

PASS

2 server-response signal(s) detected

`Vary` header declared: Origin

The page declares a `Vary` header, telling downstream caches which request headers the response varies on. Critical for content-negotiated responses (compression, language, cookies, device class).

`ETag` present -- conditional GET supported

A+

Page Weight Inventory

21 resources · 357 KB · 94 KB savings available

PASS

21 resources · 357 KB · 94 KB savings available

Within 1MB page-weight target

Got: 357 KB

~94 KB of savings available

7 third-party resources (34% of weight)

21 resources · 357.0 KiB · 7 third-party Within 1MB page-weight target

JavaScript 61% · 218.2 KiB

Image 17% · 61.4 KiB

Font 13% · 47.3 KiB

Document 5% · 17.3 KiB

CSS 3% · 12.1 KiB

Other 0% · 724 B

~94.1 KiB of savings available

Remove unused JavaScript: 94.1 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

21 resources			357.0 KiB

A+

Render-Blocking Resources

No render-blocking resources detected

PASS

No render-blocking resources detected

No render-blocking resources detected in <head>

A+

Third-Party Resources

No third-party resources detected

PASS

No third-party resources detected

JavaScript Blocking

1 JS blocking issue(s) detected

PASS

1 JS blocking issue(s) detected

3 render-blocking <script src> tag(s) without async/defer

Each `<script src=...>` without `async`, `defer`, or `type="module"` blocks HTML parsing while the browser fetches and executes it. The block lasts the entire round-trip + execution time -- on slow networks this translates directly into LCP delay. Add `defer` (executes after parse, in source order) for scripts that interact with the DOM, or `async` (executes whenever ready) for analytics / independent scripts. Module scripts (`type="module"`) are deferred by default.

A+

CSS Performance Depth

No CSS performance depth issues detected

PASS

No CSS performance depth issues detected

Asset Compression

No text asset hosts to measure

INFO

No text asset hosts to measure

No third-party or subdomain host served enough text assets to measure

Asset compression is measured per host, from one HEAD request against a sampled resource. Pages that serve all their JS and CSS from the document's own origin are covered by the document compression check instead.

Network Waterfall

21 requests over 2787ms

INFO

HTML JavaScript CSS Images Fonts XHR/Fetch Other

Image Optimization

1 images, 0 KB total, 0 KB wasted

INFO

Image Optimization Audit

Total Images

Total Size

0 KB

Oversized

1 missing dimensions

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.